CERTAIN REPAIRS MAINTENANCE AND REPLACEMENT TO DI CI GI PIPE LINES AND ALLIED WORKS OF EXTERNAL WATER SUPPLY AND CLEANING OF UNDER GROUND OVER HEAD WATER RESERVOIR SEMI UG SUMPS AND SWT INCLUDING CONNECTED WORKS IN EXPLOSIVE AREA NON EXPLOSIVE AREA

Amount

Exacavation in trenches n etc. 1.5m wide n exc 1.5m depth and getting out in hard/dense soil including trimming bottom surface to require level and shape all as specified and directed by Engg-in-charge for laying of pipes. NOTE:- Taking up pipe with fitting,special valves ect from trench shall be measured and paid separately.

Returning , filling in including spreading, levelling , watering & well ramming in layers n.exc 25cm including making good disturbed surface to original levels complete all as specified.

Removal of excavation material to a distance n exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified.

Labour and tools for removing grass, shrubs, trimming branches of trees in water supply installation and water reservoir and shifting of debris to a distance of 50 mtr away from site all as specified & directed by Engineer -in-Charge

Taking out cast iron / ductile iron water mains (including all fittings) with spigot and socket ends and lead joints including burning out joints and recovering lead for the following:- Note :- Excavation and earth work required shall be measured and paid separately under relevant items.

(a) 300 mm bore

(b) 150 mm bore

(c) 100 mm bore

(d) 80 mm bore

supply and lay ,connection and testing CI/DI pipes with spigot and socket ends centrifugally cast, class 'B' in any length, laid in trenches complete all as specified and directed for following sizes:-

(a) 300 mm bore

(b) 150 mm bore

(c) 100 mm bore

(d) 80 mm bore

Taking down existing CI specials and Material and labors specials such as bends (any type, radius, tapers) and any type (straight, bend, increasing, decreasing, or double socket ect). Tee pieces single branch 'Y' junction double branch, cross (all sockets or socket and spigot), collars caps and plugs ect for upto 250mm bore as in repair including complete all as specified and directed.

Burning out existing lead joints of CI pipes including cleaning and collecting old lead complete all as specified and directed by engineer-in-charge for the following bore pipes.

(a) 300 mm bore pipe

(b) 200 mm bore pipe

(c) 150 mm bore pipe

(d) 100 mm bore pipe

(e) 80 mm bore pipe

Material and labour for run lead joints in position for spigot socket pipe and specials including provision of all jointing materials such as pig lead, lead spun yarn/joint ect for the following bore:-

(a) 300 mm bore pipe

(b) 200 mm bore pipe

(c) 150 mm bore pipe

(d) 100 mm bore pipe

(e) 80 mm bore pipe

Taking down existing sluice valve and supply and fix in position sluice valve (ISI marked) flanged and drill both ends cast iron body, heavy duty brass spindle type PN 1.6 with and including jointing rubber gasket, nut, bolts including taking out existing CI sluice valve of following sizes:-

(a) 300 mm bore

(b) 200 mm bore

(c) 150 mm bore

(d) 100 mm bore

(e) 80 mm bore

Demolition of unserviceable broken valve chamber of any size and Material and labour for construction of new wall chamber with brick masonry valve chamber 900mm x 900mm x 900mm (internal size) 15cm thick foundation using PCC (1:4:8) type D2 using (40mm graded stone aggregates) 23cm thick brick walls built in CM (1:6) 10mm thick internal plaster & external plaster in CM (1:4)on internal wall surface of chamber and external surface upto 15cm below the ground level finished even & fair 5mm MS sheet cover including 40 x 40 x 0.6mm angle iron frame fixed on 150mm thick PCC (1:2:4) type B1using(20mm graded stone aggregate)as in coping with and including necessary use and waste of formwork with and including 25mm x 6mm flat iron hold fasts, handles, hinges with locking arrangement applying one coat of red oxide primer and two coats of synthetic enamel paint to all steel surfaces including necessary returning , filling, including disposal of surplus soil etc. complete all as specified and as directed.

Supply and fix in repair/replacement of old unsv 150 mm more CI non return valve, flanged type ISI marked with by pass arrangement all as specified and directed.

Supply and fix in repair/replacement of old unsv 100 mm more CI non return valve, flanged type ISI marked with by pass arrangement all as specified and directed.

Supply and fix in repair/replacement of old unsv 80 mm more CI non return valve, flanged type ISI marked with by pass arrangement all as specified and directed.

Supply and fix in repair/replacement of old unsv 50 mm more CI non return valve, flanged type ISI marked with by pass arrangement all as specified and directed.

Material and labour in MS iron frame work using MS channel, MS angle ect for structural support to pipe lines/base plate for pumps/approach ladder to over head water tanks all as directed including taking down/dismantling old one.

Material and labour for repair and replacement of old unserviceable MS pipe and MS ERW pipe heavy duty ( 8mm thick) in short length with all fitting including two coats of syntetic enamel paint over a coat of red oxide primer of size 150mm bore Note:- Welded joints will be measured and paid separately under relevant item of such 'A".

Material and labour for welded joints to MS ERW pipe 150mm bore all as specified and directed

Material and labour for MS flange 10mm thick 150mm dia welded to MS pipe including all necessary material for welding and jointing all as specified and directed by engr -in- charge.

Material and labour for PCC type 1:4:8 type D2 ( using 40mm graded aggregate) for thrust block for supporting pipe lines including necessary use all as specified and directed by engr -in- charge.

Material and labour for sump/tank FRP cover 60cmX60cm made out of 5 ton capacity bends to shape/with FRP frame on sides, including lifting arrangement fixed to manhole of UG sumps with grouting the frame in RCC slab complete all as specified and directed.

Taking out unserviceable rusted steel water tubing and connection including cleaning for refixing or removal from site all as directed of the following sizes:

(a) 15 mm bore

(b) 20 mm bore

(c ) 25 mm bore

(d) 40 mm bore

(e) 50 mm bore

(f) 80 mm bore

Refixing old steel tubing and connections in new or old position after cleaning including all fittings of the following size complete all as specified and directed.

(a) 15 mm bore

(b) 20 mm bore

(c ) 25 mm bore

(d) 40 mm bore

(e) 50 mm bore

Supply and laying in trenches/wall/floors GI tubing medium grade including all required fittings as required at site complete all as specified and directed of following sizes:

(a) 15 mm bore

(b) 20 mm bore

(c ) 25 mm bore

(d) 40 mm bore

(e) 50 mm bore

(f) 80 mm bore

Material and labour for repairs to CI mechanical joints suitable for CI/DI pipe with all accessories such as CI sleeve, CI outer rings, rubber gaskets, GI bolt, nut, washer etc. all as directed by Engr-in-charge and suitable for the following size of pipes:-

(a) 300 mm bore

(b) 200 mm bore

(c) 150 mm bore

(d) 100 mm bore

(e) 80 mm bore

Material and labour for seven stage cleaning and sterilization of inside the RCC Underground/semi underground clear water sumps of capacity 200000 gallons through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY thorough specialized agency : Rays Cleantech/INUS watertight/Satya Enterprises rays Cleantech/ Inus watertech/ satya enterprise.. Seven stages are as under plants:- (a) First Stage is to drain out the water by using exit valve or high capacity dewatering system. (b) Second stage is cleaning all the algae formation inside the tank by using TERBAC G10/ Inoxi-60/NB-69 a laboratory tested branded chemical of the company and scrubbing the walls of the tanks. (c) Third storage is fresh water cleaning by high speed jet pump. (d) Fourth stage and first bacteria screening is decertification by using TERBAC-G5/ Inohor-5/NB-10 branded halogen compound. (e) Fifth stage is cleaning the floor of water tank by industrial vacuum cleaner. (f) Sixth stage is the second bacteria screening and sterilizing method by using ultra violet ray within the tank and kills all suspended bacteria. (g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor of the water tank.

NOTE:-(i) company will submit government laboratory test certificate of terbac-g5/inchor-5/nb-10, terbac-g65/ inoxii-60/nb-69, before cleaning, fix the sticker mentioning the date of cleaning & name of site and also provide certificate confirming the completion of sterilization of water tanks mentioning the name of station and date of cleaning. All the cleaning & sterilization staffs should be under accidental insurance coverage.) (ii) outlet pipe of oht should be plugged before cleaning the oht to avoid. Entering scals and the same shell be reconnected after cleaning the oht and the quoted rate is deemed to include for the revision . (iii) sterilization team will be comprised of at least 30% members who are minimum 03 month certificate holder in water tanks sterilization. (iv) contractor will be responsible for rectification of complaints occurred during cleaning the tank ie. No water in tank/over flow due to broken of float valve/ blockage to be included in quoted rate. Note: The above work will be either carried out in above seven stage or as directed and specified by Engr -in- charge.

All as per ser item No 26 above but for of inside Semi UG sump reservoir capacity 40000 gallons through bacteriological treatment.

All as per ser item No 26 above but for of inside Semi UG sump reservoir capacity 20000 gallons through bacteriological treatment by using TERBAC G5/Inchor-5/NB-10/ TERBAC-G-65/ Inoxi-60/NB-69 AND ULTRA VIOLET RAY.

All as per ser item No 26 above but for of inside the PVC water storage tank (Service tank) of capacity upto 5000 Ltr through bacteriological treatment.

All as per ser item No 26 above but for of inside the PVC water storage tank (Service tank) of capacity 10000 Ltr through bacteriological treatment .

All as per ser item No 26 above but for Static Water tank of capacity 20000 Gallons through bacteriological treatment .

Supply and fix in repairs/replacement of Ball cock complete with Rod and Ball ( low pressure and high pressure) with Epoxy coated Al Rod and HD Ball of size 20mm.

Supply and fix in repairs/replacement of Ball cock complete with Rod and Ball ( low pressure and high pressure) with Epoxy coated Al Rod and HD Ball of size 25mm.

Supply and fix in repairs/replacement of Ball cock complete with Rod and Ball ( low pressure and high pressure) with Epoxy coated Al Rod and HD Ball of size 40mm.

Supply and fix in repairs/replacement of old unsv Cast Iron Body, ISI Marked Foot valve suitable for 80mm dia pipe line including all fittings all as specified and directed by Engr -in- Charge.

Supply and fix in repairs/replacement of old unsv Cast Iron Body, ISI Marked, Flange end Foot valve suitable for 100mm dia pipe line including nut, bolts, gasket and washers all as specified and directed by Engr -in- Charge.

Supply and fix in repairs/replacement of old unsv Cast Iron Body, ISI Marked, Flange end Foot valve suitable for 150mm dia pipe line including nut, bolts, gasket and washers all as specified and directed by Engr -in- Charge.

R A Electric Co. (BID ID -3084260)

Sagar Electricals (BID ID -3084732)

BALAJI TRADERS (BID ID -3089278)